I just put a new vacuum can on my 74 and had that problem. I found that I
had hooked up the new can backwards. Remember, you need vacuum to stay on
the switching side of the relay long enough because if that side drains too
fast and the relay defaults to open and there is enough vacuum on the common
switched leg, the light goes up -- it has to. On the other hand, assume
that the car loses it vacuum overnight (most all do). In the morning when
you start it, if the vacuum doesn't go the the switching leg first, up will
jump that light until vacuum builds up again and makes the relay switch. So
for me, it was just a matter of hooking the two hoses that go to the vacuum
can up properly. Kim
>At 10:11 PM 5/26/99 -0700, you wrote:
> >Every time I start my Brick or really put my foot into the gas my
>headlights
> >pop up and then after a few seconds they go back down. I thought it was
>the
> >check valve in the vacuum can so I have pulled every on I could find out
>of
> >the scrapyards and I get the same result over and over. It has been this
>way
> >since I bought it. Any ideas??
>
>Mark,
>
> This is indeed a very common problem. And I'm pretty sure you are
>correct
>in thinking that it is the check valve. My only guess is that the ones
>you've
>gotten from the scrap yard are also bad, or you have a leak in the vaccumn
>system. You might want to call John Cherba, Terry Tanner or Bob Hoffman
>and
>see what they want for a new check valve.
>
> The other solution is Terry has perfected a air system replacement for
>vaccumn headlight system. He is going to debut it at the La Porte meet.
>Call him for details. I believe the system will be in the neighborhood of
>$300 to $400.
>
>John
>
> Fasano
> >#385
> >
> >
> >
>John T. Blair WA4OHZ email: jblair@exis.net
>Va. Beach, Va Phone: (757) 495-8229
>
> 48 TR1800 65 Morgan 4/4 Series V (B1109)
>71 Saab Sonett III (71500840) 75 Bricklin SV1 (0887) 77 Spitfire
>
>Morgan: www.team.net/www/morgan
>Bricklin: www.bricklin.org
>
>
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